How to build a weather station (II): Using electronics.cat boards.

One of the biggests issues of the weather station prototype was the physical connection between Raspberry Pi and Arduino, because I needed to use one annoying USB cable as you can see in this picture:

Weather station cartonboard prototype (connectors side)

To solve this problem, I tried to connect both devices via TX/RX pins and using the /dev/ttyAMA0 instead /dev/ttyACM0 or /dev/ttyUSB0 , but the main issue was the Raspberry Pi / Arduino different pinout voltage, so I used the great electronics.cat boards thanks to @jordibinefa: